1998 - HVAC Mechanical Services, Inc. purchased by Hou-Tra International and merged with Hou-Tra's Aftermarket Services Division to form a new company - a full-service, turn-key solutions provider for commercial, institutional and industrial markets headquartered at Luce St. (85,000 sq. ft.)

2002 - Hunton Distribution formed by merging Residential equipment sales, Parts and Supplies and Vical Financial. At the same time, Hunton Distribution expanded their territory to include West Texas, Oklahoma and Eastern New Mexico with distribution locations in Houston (2), Lubbock, Oklahoma and El Paso

2004 - Hou-Tra International renamed as The Hunton Group, consisting of Hunton Trane, Hunton Trane Services, and Hunton Specialty Products on the Commercial Solutions side; and Hunton Distribution and VICAL financial services on the Distribution side.

2006 - Hunton Group reaches sales of $200 million with over 350 employees
- Hunton Group forms Hunton Energy, a development company for power production using emerging and tested technologies.

2013 - Convergentz sales exceed $15 million.
- Received contract to renovate controls for the National Archives in Washington, DC.
- Completed renovation of third high rise office building in Houston
- Completed $2M retrofit of George R. Brown Open System Controls

"Because we’re a government-funded building that’s associated with area schools, we have a tight budget and must run as efficiently as possible. So we were happy to earn EPA energy rebates as a result of our system replacement with Hunton Services."